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    • 2. 发明授权
    • Laminated dielectric resonator and filter
    • 层压介质谐振器和滤波器
    • US5621365A
    • 1997-04-15
    • US525769
    • 1995-09-20
    • Kazuhisa YamazakiNobuaki NakamuraYasue NishinoKazuaki EndoYasuo SuzukiMitsuru Kojima
    • Kazuhisa YamazakiNobuaki NakamuraYasue NishinoKazuaki EndoYasuo SuzukiMitsuru Kojima
    • H01P1/203H01P7/08
    • H01P1/20345H01P7/082
    • In a laminated dielectric resonator and filter having a folded microstrip line type resonator structure, an internal-to-external grounding conductor distance within which an open-end-side internal conductor pattern is disposed is selected to be shorter than an internal-to-external grounding conductor distance within which a short-circuit-side internal conductor pattern is disposed. In this constitution, since the front end of the resonator structure is loaded with a capacity, the resonance frequency is lowered so that it is possible to provide a resonator having a reduced longitudinal resonator size with respect to the same resonance frequency. In addition, since the resonator has no steps, manufacture and mounting are easy. Accordingly, it is possible to reduce the sizes of the laminated dielectric resonator and filter to a further extent, whereby it is possible to reduce a resonator or filter mounting area in a device.
    • PCT No.PCT / JP94 / 01913 Sec。 371 1995年9月20日第 102(e)1995年9月20日PCT PCT 1994年11月11日PCT公布。 WO95 / 23438 PCT公开 日期1995年8月31日在具有折叠微带线型谐振器结构的层压介质谐振器和滤波器中,选择其中设置开放端内部导体图案的内部至外部接地导体距离短于 内部到外部的接地导体距离,其内设置有短路侧内部导体图案。 在该结构中,由于谐振器结构的前端被加载电容,所以谐振频率降低,从而可以提供相对于相同共振频率具有减小的纵向谐振器尺寸的谐振器。 此外,由于谐振器没有步骤,所以制造和安装容易。 因此,可以进一步减小叠层介质谐振器和滤波器的尺寸,从而可以减少器件中的谐振器或滤波器安装面积。